am 24837456: Show the downloads list divided into groups based on how recently downloaded.

Merge commit '2483745674f95f60b8c3b8c9e817f2df1776a0b5' into eclair-mr2-plus-aosp

* commit '2483745674f95f60b8c3b8c9e817f2df1776a0b5':
  Show the downloads list divided into groups based on how recently downloaded.